Lin Sui'an, a profiler at the National Center for Criminal Behavior Analysis, discovers that every lead in a gallery serial murder case points to one person.
Gu Wang, an art restorer and private counselor: gentle, dangerous, and impossible to catch off guard.
Every victim had a connection to her. Old cases, anonymous multiple-choice questions, and a blacked-out list gradually drag Lin Sui'an into a human nature experiment called "Mirror."
Lin Sui'an wants to uncover the truth, only to realize that Gu Wang has been watching her for a long time.
They test each other, use each other, and go soft on each other. Gu Wang saves her time and again, and lies to her time and again. Lin Sui'an knows she's dangerous, yet still wants to tear her lies apart with her own hands.
Only later does she learn that the real deception began before they ever met.
And no one in this entire game is innocent.
Theme: Even in darkness, people can choose to hold on to their principles.